Enjoy some really fun St Patricks Day Baking Soda Science and search for gold coins.  Make a pot of gold come to life, and get a little messy in the process. Enjoy holiday-themed science activities and STEM play all year long. Fun simple science projects are exciting for young kids.

St Patricks Day Baking Soda Science Coin Hunt

St Patricks Day Baking Soda Science Coin Hunt Activity STEM


Try a fun St Patricks Day Baking Soda Science Coin hunt!  We love fizzing science experiments, and we do fizzy science in all sorts of crazy and fun ways! These little black pots are perfect for our fizzing pots science experiment with a St Patrick’s Day theme! Make sure to check out our Rainbow Fizzy Pots too! 

Get ready to add this simple baking soda science activity to your St. Patrick’s Day science lesson plans this season. If you want to learn about chemistry, let’s dig in.  While you’re at it, make sure to check out these other fun St. Patrick’s Day STEM activities for kids.

Our science activities and experiments are designed with you, the parent or teacher, in mind!  Easy to set up, quick to do, most activities will take only 15 to 30 minutes to complete and are heaps of fun!  Plus, our supplies lists usually contain only free or cheap materials you can source from home!

St Patricks Day Baking Soda Science 


  • Black Pots
  • Gold Coins
  • Baking Soda
  • Vinegar
  • Glitter
  • Turkey Baster, Eyedropper, Squeeze Bottle

St Patricks Day STEM Challenge Cards

St Patricks Day Science Set Up

The first part of the St Patricks Day baking soda science experiment is a fizzy volcano pot. I simply filled up the pot with baking soda, a few coins, and gold glitter. Lots of gold glitter.  Place your pot in the middle of a container and sprinkle more baking soda and gold glitter around it!

A turkey baster, eye dropper, or squeeze bottle and a bowl of vinegar {doused with gold glitter} are also needed.

St Patricks Day Baking Soda Science Set Up Black Pots Gold Coins

 St Patricks Day baking soda science experiment is a fizzy melting coin hunt.

I made a mixture of baking soda and water. Start with a 2:1 ratio of baking soda to water. This combination makes a packable dough that is not runny. If yours is soupy, add baking soda. I packed some of the baking soda mixture into an ice-cube tray with gold coins including pennies!

The rest of the mixture I formed into balls around a gold coin. Everything got a good coat of glitter! I popped the ice-cube tray into the freezer to set it up for a bit and make it easier to remove the cubes of treasure.

Make a coin hunt and mini volcano with St Patricks Day Baking Soda Science!

Magic Leprechaun Spray Baking Soda Science Activity Coin Hunt

For the St Patricks Day baking soda science fizzy pot volcano, use the baster to deliver the vinegar to the black pot! Watch what happens! Tons of bubbling, fizzing action erupt out of the pot bringing the coins and glitter with it! This can easily be done several times.

We used our Magic Leprechaun Spray, a spray bottle filled with green colored vinegar, to go on a coin hunt. I placed our frozen cubes and gold nuggets in the container as well. He used his spray bottle filled with magic leprechaun spray to find all the coins.

St Patricks Day Baking Soda Volcano Black Pot

Simple Baking Soda Science Information

The science behind these fizzing and erupting pots activity is all about the chemical reaction including states of matter!

When the acid (vinegar) and the base (baking soda) mix together, they form a gas called carbon dioxide. This gas is all the fizzing bubbling action you can see and even feel if you put your hand close enough! Would lemon juice work too?

All three states of matter are present: liquid (vinegar), solid (baking soda), and gas (carbon dioxide).

St Patricks Day Magic Leprechaun Activity Spraying Coins Treasure Hunt

Check Out More Fun St Patrick’s Day Ideas:

 St Patricks Day baking soda science is cool sensory play! 

Check out more STEM activities, click here or on the image below.